$\Gamma _{{{\mathit B}_{{{d}}}^{0}}}$ and $\Delta \Gamma _{{{\mathit B}_{{{d}}}^{0}}}$ are the decay rate average and difference between two ${{\mathit B}_{{{d}}}^{0}}$ $\mathit CP$ eigenstates (light $−$ heavy). The $\lambda _{CP}$ characterizes ${{\mathit B}^{0}}$ and ${{\overline{\mathit B}}^{0}}$ decays to states of charmonium plus ${{\mathit K}_L^0}$ , see the review on “$\mathit CP$ Violation” in the reviews section.

VALUE ($ 10^{-2} $) CL% DOCUMENT ID TECN  COMMENT $\bf{ 0.1 \pm1.0}$ OUR EVALUATION  $~~$(Produced by HFLAV) $\bf{ 0.1 \pm1.0}$ OUR AVERAGE $3.4$ $\pm2.3$ $\pm2.4$ 1 SIRUNYAN 2018 BY CMS ${{\mathit p}}{{\mathit p}}$ at 8 TeV $-0.1$ $\pm1.1$ $\pm0.9$ 2 AABOUD 2016 G ATLS ${{\mathit p}}{{\mathit p}}$ at 7, 8 TeV $-4.4$ $\pm2.5$ $\pm1.1$ 3 AAIJ 2014 E LHCB ${{\mathit p}}{{\mathit p}}$ at 7 TeV $1.7$ $\pm1.8$ $\pm1.1$ 4 HIGUCHI 2012 BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$ $0.8$ $\pm3.7$ $\pm1.8$ 5 AUBERT,B 2004 C BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$ $0$ $\pm9$ 6 ABDALLAH 2003 B DLPH ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit Z}}$ • • We do not use the following data for averages, fits, limits, etc. • • $0.50$ $\pm1.38$ ABAZOV 2014 D0 ${{\mathit p}}{{\overline{\mathit p}}}$ at 1.96 TeV $<80$ 95 7 BEHRENS 2000 B CLE2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$ 1  Measured using ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit K}^{*}{(892)}^{0}}$ and ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit K}_S^0}$ decays, and assuming $\beta $ = $21.9$ $\pm0.7$ degrees. 2  Measured from the ratio of decay time distributions of ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit K}_S^0}$ and ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit K}^{*0}}$ decays. 3  Measured using the effective lifetimes of ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit K}_S^0}$ and ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit K}^{*0}}$ decays. 4  Reports $−\Delta {{\mathit \Gamma}_{{{d}}}}/{{\mathit \Gamma}_{{{d}}}}$ using ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit K}_S^0}$ , ${{\mathit J / \psi}}{{\mathit K}_L^0}$ , ${{\mathit D}^{-}}{{\mathit \pi}^{+}}$, ${{\mathit D}^{*-}}{{\mathit \pi}^{+}}$, ${{\mathit D}^{*-}}{{\mathit \rho}^{+}}$, and ${{\mathit D}^{*-}}{{\mathit \ell}^{+}}{{\mathit \nu}}$ decays. 5  Corresponds to 90$\%$ confidence range [$−$0.084, 0.068]. 6  Used the measured $\tau _{{{\mathit B}^{0}}}$ = $1.55$ $\pm0.03~$ps. Corresponds to an upper limit of $<$ 0.18 at 95$\%$ C.L. 7  BEHRENS 2000B uses high-momentum lepton tags and partially reconstructed ${{\overline{\mathit B}}^{0}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}$, ${{\mathit \rho}^{-}}$ decays to determine the flavor of the ${{\mathit B}}~$meson. Assumes $\Delta _{}=0.478$ $\pm0.018~$ps${}^{-1}$ and $\tau _{{{\mathit B}^{0}}}=1.548$ $\pm0.032~$ps.

References